69
Service
1.03
GATE ROTOR BLADE REMOVAL
A) Remove the gate rotor assembly. Refer to
section 1.01 or 1.01B on gate rotor assembly
removal.
B) Remove the snap ring and washer from the
gate rotor assembly. Lift gate rotor blade
assembly off the gate rotor support.
C) Check damper pin and bushing for exces-
sive wear. Replace if necessary.
1.04
GATE ROTOR BLADE
INSTALLATION
A) There are two sizes of damper pins and bush-
ings that have been used in single screw com-
pressors. The gate rotor supports, pins and
bushings are not interchangeable. If the gate
rotor support has a small diameter pin, only
the small diameter bushing can be used with
it. Additionally a large diameter pin cannot
be used in a gate rotor support machined for
a small diameter pin.
Small Pin=Small Damper
Large Pin= Large Damper
All new compressors and replacement gate
rotor support assemblies are provided with
the large diameter damper pins. The follow-
ing table shows the sizes of pins used.
TABLE 1.1 DAMPER PIN DIAMETERS
130
119
111
120
135
110
MODEL
SMALL
LARGE
PIN DIA.
PIN DIA.
VSM 71 thru VSM 401
- - -
0.4375”
VSM 501 thru VSM 701
- - -
0.4375”
VSR 111 thru VSR 301
0.250”
0.4375”
VSS 451 & VSS 601
0.250”
0.4375”
VSS 751 & VSS 901
0.3125”
0.4375”
VSS 1051 & VSS 1201
0.375”
0.4375”
VSS 1501 & VSS 1801
0.375”
0.500”
Summary of Contents for VSM 71-701
Page 1: ...1 VPN 35391S February 2006 Rev 05 Price 60 00...
Page 2: ...2...
Page 20: ...20...
Page 52: ...53 Pre Start Up Check List...
Page 99: ...99 Recommended Spare Parts List...
Page 104: ...104 Gate Rotor...
Page 110: ...110 Main Rotor VSS...
Page 112: ...112 Main Rotor VSR...
Page 114: ...114 Slide Valve Cross Shafts and End Plate...
Page 118: ...118 Capacity Slide Volume Slide Carriage Assembly Slide Valve Carriage Assembly...
Page 134: ...134 Miscellaneous Frame Components VSS Screw Compressor VSR Mini Screw Compressor...
Page 138: ...138 C FlangeAdapter Components 630 620 610 640 601 641 630 601 620 610 640 641 642 650 651...
Page 140: ...140 Replacement Parts Tools...
Page 144: ...144 GaterotorAssembly...
Page 148: ...148 Main Rotor Slide Valve Cross Shafts and End Plate Models 71 401 Only Counter clockwise...
Page 152: ...152 Main Rotor Slide Valve Cross Shafts and End Plate Model 501 701 Only Clockwise...
Page 154: ...154 Volume Ratio Capacity Slide Carriage Assembly Slide Valve Carriage Assembly...
Page 158: ...158 Miscellaneous Frame Components Model VSM 501 701 Model VSM 71 401...
Page 160: ...160 Replacement Parts Accessories Housing Accessories C Flange Assembly...
Page 166: ...166 Haight Pumps...
Page 170: ...3 Refrigerating Specialties Division...
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Page 243: ......
Page 244: ...168...